Dear list, <sigh>.... how can such a simple thing be such a beast?
my 9ft machine... the one using 1" by 1/4" neos 12 on each rotor using 2 rotors
and 70 turns 2 in hand of #20 and 9 coils is toast.
now i guess the low output is a mute point. these neodynium mags had about 68lbs of pull n40's why my output sucked so bad is strange but here is something stranger..
The beginning of the end: for starters and I remember flux mentioning this about fiberglass resin on magnet rotors....IT SUCKS and is dangerous! I now many people on this list have had no trouble and some have but the 4 times i have used it on steel it HAS seperated despite cleaning and scouring all to hell before the pour..
My mill started ejecting magnets like bullits in todays very turbulant winds..23km/hr
then the stator grenaded from the bullit neos then a hunk of the stator jamed and pow...end of story.
BUT when i picked up the neos off the grass i said gee jamie dont carry all these in your hands cause they are so strong...well i was already irritated that my baby just shook itself to death so i threw them all in one hand.......and low and behold they basically had ZERO magnetic attraction!!!!!!!!!!!!!!!!!
How now have i managed to make a device for demagnatizing n40 neodynium magnets? all i wanted was a genny!! but how is this possibly? GEEZ!
Now what should i do... what could have possibly demagnetised these magnets while up on my mill?
not even the satisfaction of a fried stator so i could say...well at least there was some real power here... but instead my magnets demagnatise.... THATS CRAZY
OR IS IT?
perhaps something caused the neos to demagnatize, they loosened their grip on the rotor and the centifical force turned them into bullits.
please help me on this to understand what happened.... should i stay away from 2 in hand and go single windings with a few more turns for our crappy wind? what happened to the neos and their strength.. no one has ever reported that problem before.
Thanks everyone!!
Persistent Jamie
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